1 // SPDX-License-Identifier: GPL-2.0+
2
3 #include <axp_pmic.h>
4 #include <dm.h>
5 #include <dm/lists.h>
6 #include <i2c.h>
7 #include <power/pmic.h>
8 #include <sysreset.h>
9
10 #if CONFIG_IS_ENABLED(SYSRESET)
axp_sysreset_request(struct udevice * dev,enum sysreset_t type)11 static int axp_sysreset_request(struct udevice *dev, enum sysreset_t type)
12 {
13 int ret;
14
15 if (type != SYSRESET_POWER_OFF)
16 return -EPROTONOSUPPORT;
17
18 ret = pmic_clrsetbits(dev->parent, AXP152_SHUTDOWN, 0, AXP152_POWEROFF);
19 if (ret < 0)
20 return ret;
21
22 return -EINPROGRESS;
23 }
24
25 static struct sysreset_ops axp_sysreset_ops = {
26 .request = axp_sysreset_request,
27 };
28
29 U_BOOT_DRIVER(axp_sysreset) = {
30 .name = "axp_sysreset",
31 .id = UCLASS_SYSRESET,
32 .ops = &axp_sysreset_ops,
33 };
34 #endif
35
axp_pmic_reg_count(struct udevice * dev)36 static int axp_pmic_reg_count(struct udevice *dev)
37 {
38 /* TODO: Get the specific value from driver data. */
39 return 0x100;
40 }
41
42 static struct dm_pmic_ops axp_pmic_ops = {
43 .reg_count = axp_pmic_reg_count,
44 .read = dm_i2c_read,
45 .write = dm_i2c_write,
46 };
47
48 static const struct pmic_child_info axp_pmic_child_info[] = {
49 { "aldo", "axp_regulator" },
50 { "bldo", "axp_regulator" },
51 { "cldo", "axp_regulator" },
52 { "dc", "axp_regulator" },
53 { "dldo", "axp_regulator" },
54 { "eldo", "axp_regulator" },
55 { "fldo", "axp_regulator" },
56 { "ldo", "axp_regulator" },
57 { "sw", "axp_regulator" },
58 { }
59 };
60
axp_pmic_bind(struct udevice * dev)61 static int axp_pmic_bind(struct udevice *dev)
62 {
63 ofnode regulators_node;
64 int ret;
65
66 ret = dm_scan_fdt_dev(dev);
67 if (ret)
68 return ret;
69
70 regulators_node = dev_read_subnode(dev, "regulators");
71 if (ofnode_valid(regulators_node))
72 pmic_bind_children(dev, regulators_node, axp_pmic_child_info);
73
74 if (CONFIG_IS_ENABLED(SYSRESET)) {
75 ret = device_bind_driver_to_node(dev, "axp_sysreset", "axp_sysreset",
76 dev_ofnode(dev), NULL);
77 if (ret)
78 return ret;
79 }
80
81 return 0;
82 }
83
84 static const struct udevice_id axp_pmic_ids[] = {
85 { .compatible = "x-powers,axp152", .data = AXP152_ID },
86 { .compatible = "x-powers,axp202", .data = AXP202_ID },
87 { .compatible = "x-powers,axp209", .data = AXP209_ID },
88 { .compatible = "x-powers,axp221", .data = AXP221_ID },
89 { .compatible = "x-powers,axp223", .data = AXP223_ID },
90 { .compatible = "x-powers,axp803", .data = AXP803_ID },
91 { .compatible = "x-powers,axp806", .data = AXP806_ID },
92 { .compatible = "x-powers,axp809", .data = AXP809_ID },
93 { .compatible = "x-powers,axp813", .data = AXP813_ID },
94 { }
95 };
96
97 U_BOOT_DRIVER(axp_pmic) = {
98 .name = "axp_pmic",
99 .id = UCLASS_PMIC,
100 .of_match = axp_pmic_ids,
101 .bind = axp_pmic_bind,
102 .ops = &axp_pmic_ops,
103 };
104